Die Steel Round Bars – Tool Steel for Moulds, Dies & Punches

Overview of Die Steel Round Bars

A To Z Steelloys Pvt. Ltd. supplies premium-grade Die Steel Round Bars used in the manufacturing of dies, molds, punches, cutting tools, and high-performance wear-resistant components. These tool steels offer exceptional hardness, toughness, and dimensional stability during heat and pressure-intensive operations.

We offer a comprehensive range of cold work, hot work, and plastic mold die steels including H11, H13, D2, D3, P20, OHNS, and more. Our materials are sourced from approved mills and available in annealed, hardened, or pre-hardened conditions to suit your manufacturing process.

Features and Benefits of Die Steel Round Bars

• Superior Hardness & Wear Resistance:
  Essential for cutting, punching, and molding operations.
• High Red Hardness:
  Maintains strength and shape under elevated temperatures.
• Excellent Machinability:
  Available in pre-machined or ground finish for toolroom ease.
• Thermal Stability:
  Withstands thermal shocks during continuous die casting and forging.
• Wide Grade Selection:
  Supplied in D2, D3, H11, H13, P20, OHNS, SKD11, etc.
• Dimensional Accuracy:
  Ground, straightened, and UT-tested die steel for precision tooling.

Die Steel Round Bars - Technical Specifications

Industrial Applications of Die Steel Bars

• 🛠️ Die & Mold Manufacturing
• 🔧 Punches and Cutting Tools
• 🏭 Plastic Injection and Compression Moulds
• 🔥 Hot Forging Dies and Casting Dies
• 📦 Blanking and Trimming Tools
• 🚗 Automotive Dies, Components & Fixtures

Why Choose A To Z Steelloys Pvt. Ltd.?

• 50+ Years in Steel Supply for Tool & Die Industry
• Ready Stock of All Major Tool Steel Grades
• Custom Heat Treatment and Ground Finish Options
• Material Traceability with Test Certificates
• Nationwide Delivery and Export-Grade Packaging

Product Packaging and Delivery/h4>

We ensure safe and efficient packaging of die steel bars using steel strapping, protective wraps, and wooden crates (for exports). Each bar is labeled with grade, size, heat number, and hardness where applicable. Prompt dispatch is ensured through our logistics partners across India and major global ports.

Certifications and Standards

All materials supplied by A To Z Steelloys Pvt. Ltd. comply with recognized quality standards:

• ISO 9001:2015 Certified Organization
• Mill Test Certificates (MTC) with full traceability
• Third-Party Inspections by SGS, TUV, BV available
• Compliant with AISI, DIN, IS, ASTM, JIS, and EN standards

Quality Assurance

All die steel bars undergo comprehensive quality testing to ensure mechanical strength, metallurgical consistency, and surface finish. We provide detailed test reports with every batch.

• Chemical Composition via Spectrometer
• UT (Ultrasonic Testing) for internal soundness
• Hardness Testing (HRC scale)
• Visual and Dimensional Checks

Frequently Asked Questions (FAQs)

• What are die steel round bars used for?

  They are used to manufacture high-performance molds, dies, punches, and cutting tools that require hardness, wear resistance, and dimensional stability.

• What are the most commonly used grades in die steel?

  H13 and D2 are widely used for hot and cold work tooling, while P20 is popular for plastic molds. D3, OHNS, and SKD11 are used for general-purpose dies and punches.

• What hardness levels are offered?

  Bars can be supplied in hardness ranging from 28 to 62 HRC depending on grade and application. Pre-hardened or annealed options are available as well.

• Are these bars ready for machining?

  Yes, we offer bars in peeled, proof-machined, or ground finish suitable for CNC machining and toolroom processing.

• Can you supply small cut pieces or blanks?

  Yes. We provide custom-cut die steel blanks in round or block form as per your drawing or requirement.

• Do you provide test certificates?

  Absolutely. All deliveries come with Mill Test Certificates (MTC) and optional third-party inspection reports.

• What’s the difference between H13 and D2 steel?

  H13 is a hot work tool steel resistant to thermal fatigue, ideal for hot dies. D2 is a cold work tool steel with high wear resistance, best for shearing and punching applications.

• What is the delivery lead time?

  For standard stock sizes, dispatch is typically within 2–4 working days. Custom heat-treated or ground bars may take 7–10 days.

• Do you supply export orders?

  Yes. We offer export-ready packaging with documentation and support shipping worldwide from Indian ports.

• Can you arrange for hardness testing and marking?

  Yes. We offer in-house or third-party hardness testing with hardness marked on each bar as per customer requirement.

• Are your materials sourced from approved mills?

  Yes. We procure die steels only from reputed mills with proven metallurgy and traceability.

• Do you offer technical assistance?

  Yes. Our team can assist with grade selection, heat treatment advice, and machining tolerances for toolroom applications.